Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

McGregor, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
563-329 A CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      
563-329 0 CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2009-03-12   
563-329 1 CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635   2015-01-01   
563-329 2 NLBTIAXO2MD  751F MCC TELEPHONY OF IOWA, LLC - IA 635   2012-08-16   
563-329 7 CDRRIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 635   2022-11-27   
563-329 9   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 635   2018-07-23   
563-873 A EKDRIAAEDS0  1106 ALPINE COMMUNICATIONS, L.C. 635      
563-880 A CDRRIATS0MD  6266 UNITED STATES CELLULAR - IA 635      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.